(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*

This guide provides a more detailed description of the syntax that is supported along with examples.

This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.

Concept Search - What can I type?

For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.

Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.

A system is needed to enable blind users who type/write in braille to use a smart

device, such as a tablet, to type.

The novel contribution is a virtual braille keyboard with electrovibration (haptic) feedback.

The virtual braille keyboard enables a blind user to navigate a virtual keyboard by touch/feel. Dots one through six are played in sequence as the finger moves over a key, with short pauses between dots. To input a braile letter, the user lifts a finger from the keyboard at the associated location.

The touch panel has a conductive layer coated with an insulating layer, which the finger

rests upon. When voltage difference is applied between the finger and the conductive layer, a normal attractive force are induced. By alternating the voltage, we modulate the

friction force felt by the moving finger. The user "feels" the dot patterns under their finger on the touchscreen. See Cheng Xu, et al. "Tactile Display for the Visually Impaired Using TeslaTouch."

Figure 2: Tesla Touch

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Figure 3: Virtual Braille Keyboard

Example Usage Scenario

1. User places finger on virtual keyboard

2. User slides finger over keys. The user must keep the finger touching the screen